I am running a adsl connection, with usb modem. WinXP, no service pack.
I keep losing my connection. Typically, I can connect to the network ok. Then a few minutes later I can not ping the DNS server, or the Default Gateway. The message is either 'no reply', or 'unreachable'. I am looking for some way to refresh the connection.
If I type 'ipconfig /release',
that operation not allowed, as this adapter (or was is 'connection') is not configured for dhcp.
When I type 'ipconfig /all' the ip stuff is listed as a 'PPP adapter'. If I go to Contol panel -> Network connections -> Dial up -> 'myConnection' -> Networking -> TCP/IP -> properties
I can see 'Obtain IP address automatically' is checked.
When this happens, I can fix this by...
1- clicking on the Windows 'remove hardware' button in the system tray to stop the modem.
2- Windows detects the modem again, and re-starts the modem. This connects to the nework, at some low level. That is to say, no ip address is assigned yet, maybe this is just raw ATM or PPP, whatever that is.
3- On windows Contol panel -> Network connections double-click 'myConnection' to dial-in again. At this point I can ping DNS again. For a few minutes anyway, before I lose it!
I need to leave the machine running for long periods. So I seek some way to do that from the command line, so I can put in in a script. Something like an equivalent of ipconfig release/renew which works for me. Or better still, prevent the connection-loss !
thanks in advance,